The shell is your interface to UNIX.
If you make a bad mistake when you change your
.cshrc
,
.login
or
.profile
file (
2.2
)
,
or your password, it can be tough to log in and fix things.

Before you change your setup, it's a good idea to start a login
session to the same account from somewhere else.
Use that session for making your changes.
Log in again elsewhere to test your changes.

Don't have a terminal with multiple windows or another terminal
close to your desk?
You can get the same result by using
rlogin
or
telnet
(
1.33
)
to log in to your host again from the same terminal.
What I mean is: